Secondary data umesh
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This document discusses research methods for collecting primary and secondary data. It outlines different types of primary data collection methods like surveys, observation, interviews and focus groups. It also distinguishes between internal and external secondary data sources and discusses how to evaluate data sources based on criteria like accuracy, quality and timeliness.
Secondary data umesh
- 1. RMDM Presentation Submitted To: Prof. Manbeena Lehal Submitted By: Navkiran, Raj and Umesh 16/09/2010
- 4. Research Research can be defined as the search for knowledge/ information or as any systematic investigation to establish facts.
- 5. Why is research needed?
- 6. Exploratory Research Causal Descriptive
- 7. Primary Data Data originated by the researcher for the specific purpose of addressing the research problem.
- 8. Observation Focus Group Primary Data Survey Interviews
- 10. Secondary Data Data collected for some purpose other then the problem at hand.
- 11. Primary Data Vs Secondary Data For the For other Problem at Problems hand Very involved Rapid and easy process High cost Relatively Low Time taking Short
- 12. Secondary Data Internal External Requires Published Syndicated Ready to use further materials services processing Computerized data bases
- 13. Internal Data Ready to use Requires further processing
- 14. External Data Published materials Computerized data bases Syndicated services
- 16. Criteria Issues Remarks Specification / Data collection method, response rate, Data should be reliable, methodology quality, sampling techniques, sample valid and generalizable size, questionnaire design etc. Error / accuracy Examine error in approach Access accuracy by comparing data from different sources. Currency Time lag between collection and Census data are periodically publication of data updated Objective Why was the data collected? Objective determines the relevance Dependability Credibility, reputation, trustworthiness Data should be obtained from original source
- 17. Advantages Low Costs Speed Availability Flexibility Accessibility
- 18. Disadvantages Accuracy Quality Time Frame Poor Fit
- 19. Questionnaire
- 20. Questionnaire A structured technique for data collection that consists of questions, written or verbal, that a respondent answers.
- 21. Telephone questionnaire Mail questionnaire Personal questionnaire Types of interviewing methods
- 22. Survey A structured questionnaire given to respondents, designed to elicit specific information.
- 23. SURVEY METHODES Telephone Personal Mail interviewing Electronic interviewing interviewing interviewing Computer- traditional In- home Mail panel internet assisted Computer- Mall Mail E-mail assisted intercept
- 24. Observation The recording of behavioral pattern of people, objects and events in a systematic manner to obtain information about the phenomenon of interest.
- 25. Observation Methods Personal Mechanical Content Trace Audit observation observation Analysis Analysis